/* ===================================
   SECURE VAULT 3.0 - COMPLETE CSS
   =================================== */

:root {
    --primary-color: #6366f1;
    --primary-hover: #4f46e5;
    --danger-color: #ef4444;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    
    --background: #0f172a;
    --surface: #1e293b;
    --surface-hover: #334155;
    
    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --text-tertiary: #94a3b8;
    
    --border-color: #334155;
    --border-focus: #6366f1;
    
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: var(--background);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

/* ===================================
   SCREENS
   =================================== */

.screen {
    display: none;
    min-height: 100vh;
}

.screen.active {
    display: block;
}

/* ===================================
   AUTH & UNLOCK SCREENS
   =================================== */

.auth-container,
.unlock-container {
    max-width: 450px;
    margin: 80px auto;
    padding: 50px;
    background: var(--surface);
    border-radius: 24px;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
}

.logo {
    text-align: center;
    margin-bottom: 40px;
}

.logo svg {
    color: var(--primary-color);
    margin-bottom: 16px;
}

.logo h1,
.logo h2 {
    color: var(--text-primary);
    font-size: 32px;
    font-weight: 700;
    margin: 16px 0 8px 0;
}

.logo p {
    color: var(--text-secondary);
    font-size: 14px;
}

/* ===================================
   FORMS
   =================================== */

.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    margin-bottom: 10px;
    font-weight: 600;
    color: var(--text-primary);
    font-size: 14px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 14px 16px;
    border: 2px solid var(--border-color);
    border-radius: 12px;
    font-size: 16px;
    background: var(--background);
    color: var(--text-primary);
    transition: all 0.3s;
    font-family: inherit;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--border-focus);
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

/* ===================================
   BUTTONS
   =================================== */

.btn {
    padding: 14px 28px;
    border: none;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    justify-content: center;
}

.btn-primary {
    background: var(--primary-color);
    color: white;
}

.btn-primary:hover {
    background: var(--primary-hover);
    transform: translateY(-2px);
}

.btn-secondary {
    background: var(--text-secondary);
    color: white;
}

.btn-secondary:hover {
    opacity: 0.9;
}

.btn-danger {
    background: var(--danger-color);
    color: white;
}

.btn-danger:hover {
    opacity: 0.9;
}

.btn-sm {
    padding: 10px 20px;
    font-size: 14px;
}

.btn-icon {
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 8px;
    color: var(--text-secondary);
    transition: all 0.2s;
    border-radius: 8px;
    font-size: 18px;
}

.btn-icon:hover {
    background: var(--surface-hover);
    color: var(--primary-color);
}

/* ===================================
   NAVBAR
   =================================== */

.navbar {
    background: var(--surface);
    padding: 20px 32px;
    box-shadow: var(--shadow);
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 16px;
    font-size: 22px;
    font-weight: 700;
    color: var(--text-primary);
}

.nav-brand svg {
    color: var(--primary-color);
}

.nav-user {
    display: flex;
    align-items: center;
    gap: 16px;
}

.nav-user span {
    color: var(--text-secondary);
    font-weight: 600;
    padding: 8px 16px;
    background: var(--background);
    border-radius: 20px;
}

/* ===================================
   CONTAINER
   =================================== */

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 40px 32px;
}

.header-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 32px;
    padding: 24px;
    background: var(--surface);
    border-radius: 20px;
    box-shadow: var(--shadow);
}

.header-actions h2 {
    font-size: 28px;
    font-weight: 700;
}

/* ===================================
   CLIENT TREE
   =================================== */

.client-tree {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.client-item {
    background: var(--surface);
    border: 2px solid var(--border-color);
    border-radius: 20px;
    overflow: hidden;
    transition: all 0.3s;
    box-shadow: var(--shadow);
}

.client-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.client-item.expanded {
    border-color: var(--primary-color);
}

.client-header {
    padding: 24px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all 0.3s;
}

.client-header:hover {
    background: var(--surface-hover);
}

.client-info {
    flex: 1;
}

.client-name {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 16px;
}

.client-badge {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    display: inline-block;
    box-shadow: var(--shadow);
}

.client-stats {
    font-size: 14px;
    color: var(--text-secondary);
    display: flex;
    gap: 20px;
    font-weight: 500;
}

.client-actions {
    display: flex;
    gap: 10px;
    opacity: 0;
    transition: opacity 0.3s;
}

.client-header:hover .client-actions {
    opacity: 1;
}

.client-expand-icon {
    color: var(--text-secondary);
    transition: transform 0.3s;
    font-size: 20px;
}

.client-item.expanded .client-expand-icon {
    transform: rotate(90deg);
}

.client-content {
    display: none;
    border-top: 2px solid var(--border-color);
}

.client-item.expanded .client-content {
    display: block;
}

.client-tabs {
    display: flex;
    background: var(--background);
    border-bottom: 2px solid var(--border-color);
}

.client-tab {
    flex: 1;
    padding: 16px 24px;
    background: transparent;
    border: none;
    border-bottom: 3px solid transparent;
    cursor: pointer;
    font-size: 15px;
    font-weight: 600;
    color: var(--text-secondary);
    transition: all 0.3s;
}

.client-tab:hover {
    background: var(--surface);
}

.client-tab.active {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
    background: var(--surface);
}

.client-tab-content {
    display: none;
    padding: 28px;
}

.client-tab-content.active {
    display: block;
}

/* ===================================
   CATEGORY GROUPS
   =================================== */

.category-group {
    margin-bottom: 20px;
    border: 1px solid var(--border-color);
    border-radius: 16px;
    overflow: hidden;
    background: var(--background);
}

.category-header {
    padding: 16px 20px;
    background: var(--surface);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all 0.3s;
}

.category-header:hover {
    background: var(--surface-hover);
}

.category-title {
    font-size: 16px;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 12px;
}

.category-count {
    background: var(--primary-color);
    color: white;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    margin-left: 8px;
}

.category-icon {
    transition: transform 0.3s;
}

.category-group.expanded .category-icon {
    transform: rotate(180deg);
}

.category-items {
    display: none;
    padding: 12px;
}

.category-group.expanded .category-items {
    display: block;
}

.subcategory-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--primary-color);
    padding: 12px 8px 8px 8px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.credential-item,
.file-item {
    background: var(--surface);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 16px 20px;
    margin-bottom: 10px;
    cursor: pointer;
    transition: all 0.3s;
}

.credential-item:hover,
.file-item:hover {
    border-color: var(--primary-color);
    transform: translateX(8px);
}

.credential-name,
.file-name {
    font-weight: 600;
    margin-bottom: 6px;
    font-size: 15px;
}

.credential-url {
    font-size: 13px;
    color: var(--text-secondary);
}

/* ===================================
   MODALS
   =================================== */

.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    z-index: 2000;
    overflow-y: auto;
    padding: 20px;
    align-items: center;
    justify-content: center;
}

.modal.active {
    display: flex !important;
}

.modal-content {
    background: var(--surface);
    border-radius: 24px;
    max-width: 650px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
}

.modal-large {
    max-width: 1000px;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 28px 32px;
    border-bottom: 2px solid var(--border-color);
}

.modal-header h3 {
    font-size: 24px;
    font-weight: 700;
}

.close-btn {
    background: transparent;
    border: none;
    font-size: 32px;
    cursor: pointer;
    color: var(--text-secondary);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    transition: all 0.3s;
}

.close-btn:hover {
    background: var(--danger-color);
    color: white;
}

.modal-content form {
    padding: 32px;
}

.modal-actions {
    display: flex;
    gap: 16px;
    justify-content: flex-end;
    padding: 28px 32px;
    border-top: 2px solid var(--border-color);
}

/* ===================================
   COLOR PICKER
   =================================== */

.color-option {
    display: inline-flex;
    cursor: pointer;
    margin: 4px;
}

.color-option input {
    display: none;
}

.color-option span {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 3px solid transparent;
    transition: all 0.3s;
    box-shadow: var(--shadow);
    display: block;
}

.color-option:hover span {
    transform: scale(1.15);
}

.color-option input:checked + span {
    border-color: var(--text-primary);
    transform: scale(1.2);
}

/* ===================================
   EMPTY STATE
   =================================== */

.empty-state,
.empty-category {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-secondary);
}

.empty-state h3,
.empty-category p {
    margin-bottom: 16px;
}

.empty-state svg,
.empty-category svg {
    width: 60px;
    height: 60px;
    margin-bottom: 16px;
    opacity: 0.3;
}

/* ===================================
   TOAST
   =================================== */

.toast {
    position: fixed;
    bottom: 32px;
    right: 32px;
    padding: 20px 28px;
    background: var(--text-primary);
    color: var(--background);
    border-radius: 16px;
    box-shadow: var(--shadow-lg);
    transform: translateY(150px);
    opacity: 0;
    transition: all 0.4s;
    z-index: 3000;
    font-weight: 600;
}

.toast.active {
    transform: translateY(0);
    opacity: 1;
}

/* ===================================
   MESSAGE
   =================================== */

.message {
    margin-top: 16px;
    padding: 16px 20px;
    border-radius: 12px;
    display: none;
    font-weight: 500;
    border-left: 4px solid;
}

.message.active {
    display: block;
}

.message.success {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success-color);
    border-color: var(--success-color);
}

.message.error {
    background: rgba(239, 68, 68, 0.1);
    color: var(--danger-color);
    border-color: var(--danger-color);
}

/* ===================================
   PASSWORD VISIBILITY
   =================================== */

.password-hidden {
    cursor: pointer;
    user-select: none;
}

/* ===================================
   SPINNER
   =================================== */

.spinner {
    border: 4px solid var(--border-color);
    border-top: 4px solid var(--primary-color);
    border-radius: 50%;
    width: 50px;
    height: 50px;
    animation: spin 1s linear infinite;
    margin: 40px auto;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* ===================================
   RESPONSIVE
   =================================== */

@media (max-width: 768px) {
    .container {
        padding: 20px 16px;
    }

    .header-actions {
        flex-direction: column;
        gap: 16px;
        align-items: stretch;
    }

    .client-name {
        font-size: 18px;
    }

    .modal-content {
        max-width: 100%;
        margin: 0;
    }

    .nav-user {
        flex-wrap: wrap;
    }
}

/* ===================================
   SCROLLBAR
   =================================== */

::-webkit-scrollbar {
    width: 12px;
}

::-webkit-scrollbar-track {
    background: var(--background);
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 6px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-color);
}

/* ===================================
   LIGHT MODE THEME
   =================================== */

[data-theme="light"] {
    --primary-color: #6366f1;
    --primary-hover: #4f46e5;
    --danger-color: #ef4444;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    
    --background: #f8fafc;
    --surface: #ffffff;
    --surface-hover: #f1f5f9;
    
    --text-primary: #0f172a;
    --text-secondary: #64748b;
    --text-tertiary: #94a3b8;
    
    --border-color: #e2e8f0;
    --border-focus: #6366f1;
    
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

[data-theme="light"] .toast {
    background: var(--surface);
    color: var(--text-primary);
    border: 2px solid var(--border-color);
}

/* ===================================
   ADMIN PANEL STYLES
   =================================== */

.admin-section {
    background: var(--surface);
    border-radius: 20px;
    padding: 32px;
    margin-bottom: 32px;
    box-shadow: var(--shadow);
}

.admin-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
}

.admin-card {
    background: var(--background);
    border-radius: 16px;
    padding: 24px;
    margin-top: 20px;
}

.admin-table {
    width: 100%;
    overflow-x: auto;
}

.admin-table table {
    width: 100%;
    border-collapse: collapse;
}

.admin-table th,
.admin-table td {
    padding: 16px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.admin-table th {
    background: var(--background);
    font-weight: 700;
    color: var(--text-primary);
    font-size: 14px;
}

.admin-table tr:hover {
    background: var(--surface-hover);
}

.admin-table td button {
    margin-right: 8px;
    margin-bottom: 4px;
}

.alert {
    padding: 16px 20px;
    border-radius: 12px;
    margin-bottom: 24px;
    border-left: 4px solid;
}

.alert-warning {
    background: rgba(245, 158, 11, 0.1);
    color: var(--warning-color);
    border-color: var(--warning-color);
}

.alert strong {
    font-weight: 700;
}

/* Role badges */
.role-badge {
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 600;
    display: inline-block;
}

.role-super-admin {
    background: rgba(239, 68, 68, 0.1);
    color: var(--danger-color);
}

.role-admin {
    background: rgba(99, 102, 241, 0.1);
    color: var(--primary-color);
}

.role-tecnico {
    background: rgba(245, 158, 11, 0.1);
    color: var(--warning-color);
}

.role-user {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success-color);
}